<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>函数了解</title>
</head>
<body>
    <script>
        //编写一个函数，实现从num1到num2的累加
        function getSum(num1,num2){
            var sum=0;
            for(let i=num1;i<=num2;i++){
                sum+=i;
            }
            return sum;
        }
        console.log(getSum(10,100));
    </script>
</body>
</html>